However, there is a powerful advantage for those who do walk barefoot; and they achieve immunity to certain diseases, by having direct contact with the soil; and they manage to cope better with any illness.

Hi dear @graceleon, you've written well as you stated in this point that walking barefooted enhances our immunity which is responsible for fighting diseases on our body. But I have seen cases where people contract pneumonia and excessive cold in their body as a result of walking barefooted on a cold floor. I want to ask you one question, how does walking barefooted enhance our immune system.